SINLOIHI Co.

Kamakura, Japan

SINLOIHI Co.

Kamakura, Japan
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— Global Phosphorescent Pigment Industry Report offers market overview, segmentation by types, application, countries, key manufactures, cost analysis, industrial chain, sourcing strategy, downstream buyers, marketing strategy analysis, distributors/traders, factors affecting market, forecast and other important information for key insight. Companies profiled in this report are DayGlo, Aron Universal, Radiant Color, Dane Color, Lynwon Group, SINLOIHI, Brilliant, UK SEUNG Europe GmbH, Kolorjet, China Wanlong Chemical, Jiaxing Caihe, Huangshan Jiajia Fluorescent Material, Nanochemitek(China) Corp, Shiyatu, Huangshan DePing Chemical in terms of Basic Information, Manufacturing Base, Sales Area and Its Competitors, Sales, Revenue, Price and Gross Margin (2012-2017). Split by Product Types, with sales, revenue, price, market share of each type, can be divided into • Organic Phosphorescent Pigment • Inorganic Phosphorescent Pigment Split by applications, this report focuses on sales, market share and growth rate of Phosphorescent Pigment in each application, can be divided into • Plastic • Paints and Coatings • Inks • Textile Industry • Others Purchase a copy of this report at: https://www.themarketreports.com/report/buy-now/424319 Table of Content: 1 Phosphorescent Pigment Market Overview 2 Global Phosphorescent Pigment Sales, Revenue (Value) and Market Share by Manufacturers 3 Global Phosphorescent Pigment Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 4 Global Phosphorescent Pigment Manufacturers Profiles/Analysis 5 North America Phosphorescent Pigment Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 6 Latin America Phosphorescent Pigment Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 7 Europe Phosphorescent Pigment Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 8 Asia-Pacific Phosphorescent Pigment Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 9 Middle East and Africa Phosphorescent Pigment Sales, Revenue (Value) by Countries, Type and Application (2012-2017) 10 Phosphorescent Pigment Manufacturing Cost Analysis 11 Industrial Chain, Sourcing Strategy and Downstream Buyers 12 Marketing Strategy Analysis, Distributors/Traders 13 Market Effect Factors Analysis 14 Global Phosphorescent Pigment Market Forecast (2017-2022) 15 Research Findings and Conclusion 16 Appendix Inquire more for more details about this report at: https://www.themarketreports.com/report/ask-your-query/424319 For more information, please visit https://www.themarketreports.com/report/2017-2022-global-top-countries-phosphorescent-pigment-market-report


Takeshita S.,Keio University | Honda J.,Keio University | Isobe T.,Keio University | Sawayama T.,SINLOIHI Company Ltd | Niikura S.,SINLOIHI Company Ltd
Journal of Solid State Chemistry | Year: 2012

The influence of aging of the suspension containing the amorphous precusors on structural, compositional and photoluminescent properties is studied to understand the mechanism on the formation of Zn 2GeO 4:Mn 2 nanoparticles during the solvothermal reaction in the water/diethylene glycol mixed solvent. Aging at 200 °C for 20 min forms the crystalline Zn 2GeO 4 nanorods and then they grow up to ∼ 50 nm in mean length after aging for 240 min. Their interplanar spacing of (410) increases with increasing the aging time. The photoluminescence intensity corresponding to the d-d transition of Mn 2 increases with increasing the aging time up to 120 min, and then decreases after aging for 240 min. The photoluminescence lifetime decreases with increasing the aging time, indicating the locally concentrated Mn 2 ions. These results reveal that Mn 2 ions gradually replace Zn 2 ions near surface through repeating dissolusion and precipitation processes during prolonged aging after the complete crystallization of Zn 2GeO 4. © 2011 Elsevier Inc. All rights reserved.


Takeshita S.,Keio University | Honda J.,Keio University | Isobe T.,Keio University | Sawayama T.,SINLOIHI Company | Niikura S.,SINLOIHI Company
Crystal Growth and Design | Year: 2010

Zn2GeO4:Mn2+ nanophosphors are synthesized from germanium(IV) oxide and acetates of zinc and manganese(II) in a mixed solvent of water and diethylene glycol (DEG) by the solvothermal reaction at 200 °C for 2 h. Phase pure Zn2GeO4:Mn2+ is obtained for the samples prepared at 0 ≥ xDEG ≥ 91.7, where xDEG is the volume percentage of DEG in the mixed solvent. The particle and crystallite sizes decrease with the increase in xDEG. The sample prepared at xDEG = 91.7 comprises the nanorods with 30.2 and 12.2 nm in mean length and width, respectively. The actual Mn concentration measured by X-ray fluorescence analysis increases with the increase in x DEG and approaches to the nominal concentration, 2.0 at %. The samples show green luminescence corresponding to the d-d transition of Mn 2+ under the irradiation of UV and near-UV light. The photoluminescence intensity reaches a maximum around xDEG ∼ 80. This is attributed to the competitive factors, the Mn concentration and the sizes of crystallites and particles. © 2010 American Chemical Society.


Hara H.,Keio University | Takeshita S.,Keio University | Isobe T.,Keio University | Nanai Y.,University of Electro - Communications | And 3 more authors.
Journal of Alloys and Compounds | Year: 2013

We report a glycothermal synthesis of Ce3+-doped YBO3 mesocrystals and their Ce3+-concentration dependence of particulate and photoluminescent properties. Submicrometer-sized YBO3:Ce 3+ disk-like particles with Ce3+ concentrations of 0-3 at.% were formed from trimethyl borate and acetates of yttrium and cerium(III) via a glycothermal reaction at 300 °C for 2 h in 1, 4-butanediol. The size of the particles decreased from ∼1.5 μm to ∼150 nm with increasing the Ce3+ concentration up to 1 at.%. Selected area electron diffraction revealed that each disk-like particle was a mesocrystal, i.e., an assembly of nanocrystals with a uniform crystallographic orientation, irrespective of the Ce3+ concentration. The particles showed blue emission through 5d-4f transitions of Ce3+ under near-UV excitation. Concentration quenching of the Ce3+ emission for the glycothermally-prepared YBO3:Ce3+ started from a lower Ce3+ concentration than that of solid-state-prepared bulk YBO 3:Ce3+, indicating an inhomogeneous distribution of Ce3+ ions in the mesocrystals. © 2013 Elsevier B.V. All rights reserved.


Takeshita S.,Keio University | Ogata H.,Keio University | Isobe T.,Keio University | Sawayama T.,SINLOIHI Company | Niikura S.,SINLOIHI Company
Journal of the Electrochemical Society | Year: 2010

YV O4: Bi3+, Eu3+ nanoparticles were prepared by the wet chemical synthesis in various concentrations of sodium citrate, 15≤ xcit ≤90, where xcit is the nominal molar percentage of citrate relative to the sum of metallic ions, Y 3+, Bi3+, and Eu3+. Mean primary nanoparticle diameter and mean hydrodynamic size in the aqueous colloidal solution have minimum values, 21 and 36 nm, respectively, for the sample prepared at x cit =50. The transparency of the aqueous colloidal solution in the visible region increases with decreasing the mean hydrodynamic size, and the sample prepared at xcit =50 shows the highest transparency. YV O 4: Bi3+, Eu3+ nanoparticles show the characteristic photobleaching behavior and the photoreduction of V5+ to V4+ under the irradiation of near-UV light, where the fraction of photobleach becomes larger at large xcit. These results suggest that the citrate ion works not only as an effective dispersion agent, but also as a reducing agent against V5+ of YV O4: Bi3+, Eu3+. © 2010 The Electrochemical Society.


Hara H.,Keio University | Takeshita S.,Keio University | Isobe T.,Keio University | Sawayama T.,SINLOIHI Co. | Niikura S.,SINLOIHI Co.
Materials Science and Engineering B: Solid-State Materials for Advanced Technology | Year: 2013

We have developed a transparent composite film consisting of YVO 4:Bi3+,Eu3+ nanophosphor and polyurethane resin which exhibits unique photophysicochemical behavior. The nanophosphor shows red photoluminescence through f-f transitions of Eu3+ under near-UV irradiation. The emission intensity drops to half of the initial value after continuous irradiation for 23 h. As shown by electron spin resonance spectroscopy, this decrease in the emission intensity is caused by the formation of V4+ defects. In addition, thermal analysis and Fourier transform infrared spectroscopy show that the amount of the organic species in the film decreases from 58 to 25 wt% after 23 h. These results indicate that the nanophosphor promotes photooxidative decomposition of the polyurethane resin, while some of the V5+ ions in YVO4 are converted to V 4+ ions by photoreduction. Prolonged irradiation for 96 h leads to complete decomposition of the polyurethane and the disappearance of the V 4+ defects, resulting in the recovery of the emission intensity. These findings suggest that the photoluminescence of YVO4:Bi 3+,Eu3+ nanophosphor can be used to detect the photooxidative decomposition of polyurethane. © 2012 Elsevier B.V. All rights reserved.


Ogata H.,Keio University | Takeshita S.,Keio University | Isobe T.,Keio University | Sawayama T.,SINLOIHI Co. | Niikura S.,SINLOIHI Co.
Optical Materials | Year: 2011

YBO3:Ce3+ blue-emitting phosphors were prepared from boric acid and nitrates of yttrium and cerium(III) by hydrothermal method. An excess amount of boric acid, prolonged aging, high temperature, and a high pH value promote the formation of crystalline YBO3. The higher crystallinity results in the higher photoluminescence (PL) intensity corresponding to the 5d-4f transition of Ce3+ under the irradiation of near-UV light. The PL intensity also depends on the pH value of precursor suspension and the nominal Ce3+ concentration, where the sample prepared at pH = 8 and Ce/(Y + Ce) = 0.25-0.5 at% shows the maximum PL intensity. In addition, the hydrothermally prepared sample shows the characteristic photobleaching behavior under the continuous irradiation of near-UV light. These results suggest that the crystallinity of the host YBO 3 crystal and the homogeneity of substituted Ce3+ ions play significant roles in the PL properties. © 2011 Elsevier B.V. All rights reserved.


Takeshita S.,Keio University | Watanabe T.,Keio University | Isobe T.,Keio University | Sawayama T.,SINLOIHI Company | Niikura S.,SINLOIHI Company
Optical Materials | Year: 2011

YVO4:Bi3+,Eu3+ nanophosphor synthesized by the citrate route shows the photobleaching behavior, i.e., the decrease in photoluminescence intensity under the continuous irradiation of excitation light. This photobleaching property is remarkably suppressed by the washing post-treatment combined with centrifugation and the hydrothermal post-treatment. A relation between the fraction of photobleach and the amount of citrate ions coordinating to metallic ions at the surface of nanoparticles verifies that the photobleaching behavior of YVO4:Bi3+,Eu3+ nanophosphor originates from the redox reaction between the citrate ions and V5+ in YVO4 host crystal. The long-term light fastness test reveals that the hydrothermally treated YVO4:Bi 3+,Eu3+ nanophosphor has sufficient photostability for practical use over 15 years outside. © 2010 Elsevier B.V. All rights reserved.


Takeshita S.,Keio University | Isobe T.,Keio University | Sawayama T.,SINLOIHI Co. | Niikura S.,SINLOIHI Co.
Progress in Crystal Growth and Characterization of Materials | Year: 2011

YVO4:Bi3+,Eu3+ nanophosphors are prepared by low-temperature wet chemical precipitations in the presence of citrate ions. Transparently dispersed YVO4:Bi3+,Eu3+ nanophosphors crystallize from amorphous gel precursors through a gel-sol process. The homogeneity of Bi3+ doping process as well as the photoluminescence property are improved by using the homogeneous Bi3+ solution as a Bi3+ source instead of Bi3+ powder. YVO4:Bi3+,Eu3+ nanophosphor under the irradiation of near-UV light shows peculiar photobleaching behavior through the reduction from V5+ to V4+, but this photobleach is suppressed by subsequent hydrothermal treatment. The authors also discuss the advantage of transparency of YVO4:Bi3+,Eu3+ nanophosphor in terms of wavelength conversion as compared to micron-sized phosphor. © 2011 Elsevier Ltd. All rights reserved.


Patent
Keio University and Sinloihi Co. | Date: 2011-03-16

An ink composition comprising a microparticulate fluorescent material which can emit a high brightness fluorescent light by ultraviolet ray and has a predetermined nanosize is provided. The ink composition comprises a microparticulate fluorescent material represented by the formula YVO_(4):A, wherein A is a rare earth metal other than yttrium, which can emit a fluorescent light by the excitation with ultraviolet ray. The fluorescent material has an average primary particle size of 30 to 400nm and has not been calcined. The fluorescent material is prepared by, for example, mixing Composition (I) containing a yttrium compound, a compound of rare earth metal other than yttrium and a complex forming compound in water with Composition (II) containing a vanadium compound in water and then reacting them.

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